1992 300ce Oil Leak At Cylinder Head

my 1992 300 CE has a oil leak at the back of the cylinder head. i have 86,000 miles on this vehicle and i want to remove the cylinder head, replace gaskets, valve seals, re-surface cylinder head, and replace head bolts. i am not to familiar with this type of engine and i would like to know if there is anything else i need to do to complete this job. because the engine has 86,000 miles on it, i do not want to replace to many parts. my other concern is what kind of special tools do i need in removing the cylinder head.


many thanks for your input.